The 1950′s Knight 83 SX 234 Vintage Vacuum Tube Power Amplifier Kit is a mono amplifier designed by Knight. This vintage electronic offers a classic design and high-quality sound for audio enthusiasts looking to add a retro touch to their audio setup. With vacuum tube technology, this amplifier provides a warm and rich sound that is perfect for vintage audio collectors or those who appreciate the unique sound of tube amplifiers. The Knight 83 SX 234 vintage amplifier kit is a timeless piece of audio equipment that is sure to enhance any music listening experience. Looks to be never used or unfinished.